| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 156135000 | Bead portion of carcass treatment | 16 |
| 20090084490 | Device for Turning up a Tire-Building Component on a Tire-Building Drum - An apparatus for upturning a tire-building component on a tire-building drum has a roller lever. To provide an apparatus which is capable of upturning a tire-building component on a tire-building drum, and which achieves the upturn of the tire-building component without defects, in particular unintended creasing in the side wall, it is proposed that, during the procedure of preparation for upturning, a spacer provides separation between the roller and the segment in such a way that the roller is in essence in contact exclusively with the tire-building component. The roller therefore rolls along the tire-building component. | 04-02-2009 |
| 20090133809 | METHOD AND TYRE BUILDING DRUM FOR BUILDING A TYRE - When building an unvulcanised tyre from tyre components using a tyre building drum, the mutual distances considered in axial direction between a bead ring segment, a first end and a steering element of a folding arm in question are chosen such that at movement of a steering element towards the bead ring segment a steering surface comes to abut the steering element so that the roller element can be moved from a first position, after which the roller element presses an outer part of the tyre components against a bead ring core to be placed on the bead ring segment while simultaneously the roller element moves away from the longitudinal axis, wherein the steering element moves along the steering surface until the stop of the annular steering segment abuts an annular folding arm segment, after which the folding arm swivels about a swivel axle and the steering element comes to lie apart from the steering surface. | 05-28-2009 |
| 20100043952 | APPARATUS AND METHOD FOR TRANSFERRING BEAD MEMBER - When a bead member formed of a bead core and a bead filler is transferred, the occurrence of deformation in the bead filler is restricted, and the shape accuracy thereof is improved. A plurality of supporting pawls provided on a transfer apparatus are brought into contact with an inside diameter portion of a bead core of a bead member to support it at a plurality of points in the circumferential direction, from the inner circumferential side. At the same time, an end of a bead filler is sucked and supported by suction pads joined to the supporting pawls via joint members. The bead member, while being held at the respective parts, is removed from a forming apparatus, is moved to a cartridge for storage, and is placed on a placing surface of the cartridge. Thereafter, the suction holding of the bead filler is released and the supporting pawls are moved away from the inside diameter portion of the bead core, thus transferring the bead member onto the cartridge. | 02-25-2010 |
| 20100051177 | BEAD CONSTRUCTION METHOD FOR A TIRE - A method and apparatus for manufacturing an annular tire component such as a tire bead includes locating a toroidal support; placing an ejector nozzle in an interference relationship to the toroidal support; and simultaneously ejecting through the nozzle a continuous stream of an elastomeric belt component material in a suitably fluid state and a continuous length of at least one thread component disposed within the stream onto the toroidal support in a predetermined bead configuration. The bead configuration is at least partially defined by a relief in the nozzle ejection port and by the toroidal support onto which the bead is formed. Rotation of the toroidal support may be coupled with the simultaneous ejection of the elastomeric component and thread component in order to create an annular bead structure. A tire may be constructed having a desired bead configuration and location by means of the method and apparatus. | 03-04-2010 |
| 20110155300 | METHOD AND DEVICE FOR MANUFACTURING BEAD - In a bead manufacturing method and bead manufacturing device, a former rotatably supported on a support base and pivotably holds opposite end portions of a plurality of elastically deformable spring members arranged on an outer circumference thereof with gaps in a circumferential direction for annularly winding a bead filler around the spring members, an actuation mechanism is provided for curving the spring members in the radial directions of the former, and a bead core holding portion is arranged at one end side of the former for holding a bead core. When the spring members are elastically deformed outward in the radial directions of the former to a semicircular shape, the bead filler annularly wound around the spring members are raised up to fixedly fit a short bottom side thereof on the outer circumference of the bead core held at one end side of the former. | 06-30-2011 |
| 20130180647 | PROCESS AND APPARATUS FOR MANUFACTURING A TYRE FOR VEHICLE WHEELS - A process for manufacturing a tyre for vehicle wheels includes: laying at least one carcass ply on a forming support having a rotation axis; bringing an annular anchoring structure in contact position with an end edge of the carcass ply; holding through a positioning device, the annular anchoring structure in contact position with the end edge while an air chamber is partially inflated to carry out a first part of turning up the end edge around the annular anchoring structure; moving the positioning device away from the annular anchoring structure; and completing the inflation of the air chamber to carry out the remaining part of turning up the end edge around the annular anchoring structure, so as to form a turned up end portion of the carcass ply including the annular anchoring structure. | 07-18-2013 |
| 20130276958 | METHOD FOR PRODUCING BASE TIRE AND METHOD FOR PRODUCING TIRE - In the method for producing a tire casing of the present invention by vulcanizing a casing portion comprising a belt portion composed of multiple belt layers, a side portion and a bead portion and also comprising at least any one of a tread casing and a belt under-cushion rubber, a rubber composition containing carbon black having a nitrogen adsorption specific surface area of from 25 to 130 m | 10-24-2013 |
| 20140000791 | PROCESS FOR MANUFACTURING A TYPE AND TYRE BEAD STRUCTURE | 01-02-2014 |
| 20140069573 | METHOD FOR PREFORMING A GREEN TIRE - Disclosed is a method and apparatus for preforming a green tire into a shape that is equivalent to the shape of the green tire when placed in a closed mold. The method for preforming orients the beads of the green tire parallel and concentric to one another and also rotates the bead area components of the tire into the proper configuration prior to cure. The bead portions of the tire maintain the parallel position as the tire is loaded into a tire mold. | 03-13-2014 |
| 20140138015 | TIRE - The present invention provides a tire having improved durability of a bead portion. Specifically, the present invention provides a tire having: at least one layer of carcass, including a carcass main body extending in a toroidal shape across a pair of bead cores and a carcass turn-up portion continuous with the carcass main body and wound around each bead core from the inner side toward the outer side in the tire widthwise direction and; at least two layers of textile chafer disposed on the tire-radial direction inner surface of the carcass with respect to the bead core; and at least one layer of wire chafer, characterized in that: in a state where the tire is assembled with a “design rim” prescribed in TRA and inflated at an inner pressure of 50 kPa and, providing that the center of a flange curvature of the rim is P and the outer most end in the tire radial direction of a portion covering the carcass main body, of the textile chafer, is A, an angle θ formed by a line passing P and in parallel with the tire rotation axis, with respect to a line linking P and A, is in a range of 20°≦θ≦60°. | 05-22-2014 |
| 20140332143 | PNEUMATIC TIRE FOR HEAVY LOAD, AND METHOD FOR PRODUCING THE SAME - In the method according to the invention for producing a pneumatic tire for heavy load, it is important that the following vulcanizing conditions are satisfied, the temperature for vulcanizing the tread region is 140° C. or lower, a vulcanization calorie given to the bead regions is a calorie corresponding to a time of 25 to 40 minutes in terms of the vulcanization calorie at a vulcanizing temperature of 140° C., and the ratio of a vulcanization calorie given to the front surface of the tread region to the vulcanization calorie given to the bead regions is 0.6 or more and less than 1.0, these vulcanization calories being each in terms of the vulcanization calorie at the vulcanizing temperature of 140° C. | 11-13-2014 |
| 20150083307 | MACHINE AND METHOD OF FORMING A BEAD-APEX ASSEMBLY FOR TIRES. - A tyre building machine for applying an apex to a bead to form a bead-apex assembly for a green tyre, including a bead holder for holding the bead, wherein the tyre building machine includes a first gripper and a second gripper for engaging and moving the apex in a direction of conveyance towards the bead, wherein the first gripper is moveable between a first start position and a first end position and the second gripper is moveable between a second start position and a second end position, wherein the tyre building machine is provided with wedges, wherein the grippers are biased to a closed state in which the grippers are arranged to engage the apex, and wherein the wedges are arranged for countering the bias of the grippers when the grippers are at one of the start positions or the end positions. | 03-26-2015 |
| 20150352798 | APPARATUS AND METHOD FOR FORMING AN ANNULAR APEX FILLER FOR TIRE BEADS - The invention relates to an apparatus and a method of forming an annular apex filler for tire beads. Said apparatus comprises a cylindrical former ( | 12-10-2015 |
| 20160031175 | SYSTEM AND METHOD FOR MAKING A CARCASS FOR A PNEUMATIC VEHICLE TIRE - A method for making a carcass for a pneumatic vehicle tire includes building up a carcass free from sidewalls with an inner liner, a single-ply or multi-ply carcass inlay and bead cores, at a carcass station on a carcass building drum, while creating ply turnups. The carcass produced without sidewalls is transferred to a transfer device. The carcass is kept on the transfer device while applying sidewalls to the carcass. The carcass is retained on the transfer device while transferring the carcass provided with the sidewalls to a shaping machine where the carcass is shaped into a toroidal shape. | 02-04-2016 |
| 20160144585 | TYRE BUILDING DRUM WITH A TURN-UP MECHANISM - Disclosed is a tyre building drum having tyre components thereon, wherein the tyre building drum is provided with a turn-up mechanism for turning-up parts of the tyre components, wherein the turn-up mechanism includes a group of arms, wherein each group of arms includes primary arms and secondary arms interposed between the primary arms, wherein, the primary arms and the secondary arms are provided with primary pressing elements and secondary pressing elements, respectively, for exerting a pressing force onto the tyre components during the turning-up, wherein the primary pressing elements are in a leading position, wherein the secondary arms are provided with actuators which are arranged for displacing the secondary pressing elements from an axially trailing position with respect to the axial position of the primary pressing elements in the leading position towards the same axial position as the primary pressing elements in the leading position. | 05-26-2016 |
| 20170232696 | TIRE MANUFACTURING METHOD AND TIRE | 08-17-2017 |
